Cloud Computing Week 5 NPTEL Assignment Answers 2025

Need help with this week’s assignment? Get detailed and trusted solutions for Cloud Computing Week 5 NPTEL Assignment Answers. Our expert-curated answers help you solve your assignments faster while deepening your conceptual clarity.

✅ Subject: Cyber Security and Privacy
📅 Week: 5
🎯 Session: NPTEL 2025 July-October
🔗 Course Link: Click Here
🔍 Reliability: Verified and expert-reviewed answers
📌 Trusted By: 5000+ Students

For complete and in-depth solutions to all weekly assignments, check out 👉 NPTEL Cloud Computing Week 5 NPTEL Assignment Answers

🚀 Stay ahead in your NPTEL journey with fresh, updated solutions every week!

NPTEL Cloud Computing Week 5 Assignment Answers 2025

1. In an SLA agreement, a cloud provider promises 98.5% availability. An application runs X hours per day. Over a 30-day month, the total downtime was 11 hours. The SLA is still considered honored.
What is the minimum possible value of X?

A. X is at least 24.44
B. X is at most 24.44
C. X is exactly 24.44
D. Insufficient data

Answer : See Answers

2. In a multi-core system, increasing the number of active CPU cores will generally lead to:

A. A decrease in power consumption
B. A constant power consumption
C. An increase in power consumption
D. No effect on power consumption

Answer :

3. Which economic factor is most impacted when moving from on-premise to cloud infrastructure?

A. Taxation
B. Labor productivity
C Capital expenditure
D. Bandwidth consumption

Answer :

4. In the Hadoop MapReduce framework, consider the HDFS block size is 64 MB. You have 3 files with the sizes: 64 KB,65 MB and 127 MB. How many physical HDFS blocks will be created by the Hadoop framework to store these files?

A. 9
B. 15
C. 6
D. 8

Answer :

5. Which of the following best represents a logical resource in a virtualized environment?

A. Virtual Machine
B. Hard Disk
C. RAM
D. Network Cable

Answer :

6. Which optional MapReduce component helps in reducing the volume of data transferred to the Reducer?

A. Partitioner
B.Combiner
C.RecordReader
D. OutputFormat

Answer : See Answers

7. In virtualized environments, the software layer that allows multiple VMs to share physical hardware is the_________________.

A. Allocator
B.Orchestrator
C.Container
D.Hypervisor

Answer :

8. Which scheduling strategy in cloud resource management aims to reduce the number of physical
machines used, without violating performance constraints?

A. Round-robin scheduling
B. Energy-aware scheduling
C. Priority-based scheduling
D. First-come-first-serve

Answer :

9. Statement 1: Economies of scale in cloud computing lead to reduced costs per unit as the scale
increases.
Statement 2: Cloud providers pass all savings from economies of scale directly to individual users.

A. Both statements are true
B. Both statements are false
C. Statement 1 is true and Statement 2 is false
D. Statement 1 is false and Statement 2 is true

Answer :

10. Average resource demand is 50 units,Baseline (owned) unit cost is 100 units, Time is 10 hours, Peak
resource demand is 120 units. What is the maximum allowable utility premium (U) if the cloud cost must be less than owning cost?

A. 2.4
B. 2.0
C. 1.8
D. 3.0

Answer : See Answers

NPTEL Cloud Computing Week 5 Assignment Answers 2024

Q1. ____ is a formal contract between a Service Provider (SP) and a Service Consumer (SC).

• A. SLO
• B. SLA
• C. KPI
• D. Utility Premium

✅ Answer :- b
✏️ Explanation: A Service Level Agreement (SLA) is a formal contract that outlines expectations, responsibilities, and guarantees between a Service Provider and a Service Consumer.

---

Q2. Statement 1: SLA contains SLO.

Statement 2: Multiple KPIs are aggregated to SLA.**

• A. Statement 1 is TRUE and Statement 2 is FALSE
• B. Statement 2 is TRUE and Statement 1 is FALSE
• C. Both statements are TRUE
• D. Both statements are FALSE

✅ Answer :- a
✏️ Explanation:

• Statement 1 is TRUE: SLA includes Service Level Objectives (SLOs).
• Statement 2 is FALSE: KPIs support SLOs, but aren’t directly aggregated to SLA.

---

Q3. If demand is flat, the penalty will be linear.

• A. TRUE
• B. FALSE

✅ Answer :- b
✏️ Explanation: Flat demand doesn’t necessarily lead to a linear penalty; penalties often depend on SLA terms, not demand patterns.

---

Q4. What is/are the correct statement(s) regarding VM load management?

• A. When load increases, new VMs should be scheduled to new nodes.
• B. When load decreases, use WOL to start up waiting nodes.
• C. When load increases, use WOL to start up waiting nodes.
• D. When load decreases, live migrate VMs to more utilized nodes.

✅ Answer :- a, c, d
✏️ Explanation:

• (a) New VMs on new nodes help scale.
• (c) Wake-on-LAN (WOL) is used to power up standby nodes under load.
• (d) Migration helps consolidate VMs and power down unused nodes.
• (b) is incorrect; WOL is for scaling up, not down.

---

Q6. A third-party application runs in the cloud for 12 hours/day. At the end of one month [30 days], it was found that the cloud service suffered 5 outages of durations: 1 hr 30 min, 30 min, 2 hr 15 min, 1 hr 45 min, and T hours. SLA guarantees 97% uptime. What are the possible value(s) of T that SLA negotiation gets honored?

• A. 3 hours
• B. 6 hours
• C. 12 hours
• D. 8 hours

✅ Answer :- a
✏️ Explanation:
Total uptime = 12 hrs/day × 30 = 360 hrs
97% of 360 = 349.2 hrs → allowed downtime = 10.8 hrs
Sum of known outages = 6 hrs
T must be ≤ 4.8 hrs → 3 hrs is acceptable, others violate SLA.

---

Q7. Which of the following is/are objectives of Resource Management?

• A. Increased latency
• B. Scalability
• C. Improved throughput
• D. Improved security

✅ Answer :- b, c
✏️ Explanation: Resource management aims to scale efficiently and improve throughput. Increased latency is negative, and while security is important, it is not a primary goal of resource allocation.

---

Q8. Which of the following is/are resource allocation approaches in resource management?

• A. Energy-aware resource allocation
• B. Reinforcement learning guided control policy
• C. Network queuing model
• D. Intelligent multi-agent model

✅ Answer :- a, d
✏️ Explanation:

• Energy-aware methods optimize for power efficiency.
• Multi-agent systems help in decentralized decision making.
• (b) and (c) are techniques/models, not primary allocation strategies.

---

Q9. Statement 1: Each reducer groups map results using different keys and applies a function f on the list of values for these keys.

Statement 2: Files are sorted by a key and stored to the local file system.**

• A. Statement 1 is TRUE and Statement 2 is FALSE
• B. Statement 2 is TRUE and Statement 1 is FALSE
• C. Both statements are TRUE
• D. Both statements are FALSE

✅ Answer :- b
✏️ Explanation:

• Statement 1 is FALSE: All reducers group by the same keys.
• Statement 2 is TRUE: Output is often sorted and stored locally.

---

Q10. In computing, there is a nonlinear relationship between the number of processing cores used and power consumption

• A. TRUE
• B. FALSE

✅ Answer :- a
✏️ Explanation: Power usage doesn’t scale linearly with core count due to overhead, heat, and power efficiency curves.